Did President Obama and the Democrats simply fail to sufficiently explain to the American people how much they had done for the country?

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An article in the International Journal of Obesity says that lack of exercise and an excess of junk food may not sufficiently explain our expanding waistlines.

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Inspectors said managers were unable to sufficiently explain why.

BBC: Maria Ball

Although he was sufficiently reticent when asked to explain the connection to resurrection to be justly excluded from the voting.

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But the president of the three-man tribunal interrupted the former butler when he tried to explain why he felt Pope Benedict was not sufficiently informed about "certain matters".

BBC: Opening court session in Vatican, 29 Sep 12